CN207583407U - A kind of mine coal helps anchor recovering drilling tool - Google Patents
A kind of mine coal helps anchor recovering drilling tool Download PDFInfo
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- CN207583407U CN207583407U CN201721059491.2U CN201721059491U CN207583407U CN 207583407 U CN207583407 U CN 207583407U CN 201721059491 U CN201721059491 U CN 201721059491U CN 207583407 U CN207583407 U CN 207583407U
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- hollow
- coal
- drilling rod
- drill bit
- anchor pole
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Abstract
The utility model discloses a kind of mine coals to help anchor recovering drilling tool, including connector, hollow drilling rod and hollow drill bit, connector, hollow drilling rod and hollow drill bit are using threaded connection, hollow drill bit welds 3 tooth diamond compacts, and hollow drilling rod internal diameter is more than the sum of coal side resin metallic armature boring diameter and 2 times of eccentricities.The 3 tooth diamond compacts of the utility model, the cutting output that can solve common alloy sheet hollow drill bit is small, slow, the broken cash effect of fltting speed is poor, is short of power and the problems such as more people's operations；Internal diameter, wall thickness, quantity and the length of hollow drilling rod, the problems such as design of hollow drilling rod internal diameter is unreasonable, interference coal helps anchor pole, the directly disconnected coal side resin metallic anchor pole of set and multistage hollow drilling rod can be solved, so the utility model has many advantages, such as that fast, the broken cash effect of safe operation, fltting speed is good, recovery utilization rate is high.
Description
Technical field
The utility model belongs to the technology scope of coal measure strata mine coal seam tunnel coal side supporting, and in particular to a kind of mine
Heading coal helps resin metallic anchor recovering drilling tool.
Background technology
In coal measure strata mine coal seam tunnel coal helps supporting, common coal side anchor pole is glass fibre reinforced plastics rockbolts, recyclable gold
Belong to three kinds of anchor pole and resin metallic anchor pole etc..Wherein, it is held the shortcomings that glass fibre reinforced plastics rockbolts, Recoverable metal anchor rod for torque and pallet
Carry the predominantly resin metallic anchor pole that power is small, is used as coal side anchor pole.Resin metallic anchor pole helps supporting in fully-mechanized mining working coal
When, it needs to recycle it in exploitation process, existing recovery method is mainly：
(1) coalcutter coal cutting is to end, and when ore deposit pressure shows, and manually directly extracts coal and helps resin metallic anchor pole；Ore deposit pressure is not
When showing, coal side resin metallic anchor pole is directly cut, is manually sorted out resin metallic anchor pole residuum in drag conveyor,
The security risk of such method operation is larger.
(2) coal side anchor pole is directly extracted using coal side anchor recovering method, to realize returning for coal side resin metallic anchor pole
It receives, such as：Patent (104653205 A of CN) discloses a kind of fully-mechanized mining working coal side resin metallic anchor recovering method, the party
Method is resin metallic anchor pole to be helped to connect with coal hoisting ring one end, and the other end is connect with drawstring, the other end and coalcutter of drawstring
Telescopic oil cylinder connection, when coal mining machine cut is in the range of coal side resin metallic anchor pole 1m, telescopic oil cylinder drives drawstring will
Coal side resin metallic anchor pole in the range of this is directly extracted, and realizes coal side resin metallic anchor recovering；Patent (CN 203214078
U, 202,520,340 2184784 Y of U, CN of CN) etc. disclose a kind of roofbolt recovering device, using motor or hydraulic pump as
Power source helps resin metallic anchor pole exposed parts using clamp coal, and coal side resin metallic anchor pole is directly extracted, realizes coal
Resin metallic anchor recovering is helped, the shortcomings that such method is：On the one hand, due to resin metallic anchor-holding force of anchor bolt and coal slope laneway ore deposit
The effect shown is pressed, the power directly extracted needed for coal side resin metallic anchor pole is larger；On the other hand, the coal side resin gold of extraction
Category anchor pole scrappage is higher, and yield strength is not up to standard, and recovery utilization rate is low.
(3) roofbolt recovering device is helped directly to extract coal side anchor pole using coal, the retracting device is mainly by connector, hollow
Drilling rod and the first-class three parts composition of core drill, are divided into dry type coal side roofbolt recovering device and wet type coal side roofbolt recovering device two are big
Class, wherein：Patent (CN 103452572 A, CN 104929664 A, CN 103527230 A, CN 203175586 U, CN
202810879 201,125,671 2,886,051 2535540 Y of Y, CN of Y, CN of U, CN) etc. disclose a kind of dry type coal side anchor
Rod recovery device, notable technical characteristic are the auger stems that hollow drilling rod is tubular structure, the auger stem evagination or embedded
Helix, wind to be pressed to discharge conny by helix as power, so as to which coal side resin metallic anchor pole directly be extracted；But
《Safety regulations in coal mine in 2011》In clearly stipulate that drill in coal and rock beds, wet boring should be taken, coal (rock) is dashed forward with gas
When firedamp taking-out discharging drilling is difficult to take wet boring in coal output layer or soft seam, dry drilling can be taken, but must take catch dirt,
Measurements for reduction, staff must wear proofing dust and protecting articles for use, as directly cover the anchor pole disclosed in side resin metallic anchor pole that produces coal
Retracting device, should use wet boring, and dry drilling is a kind of non-standard operation；Patent (CN 203594369 U, CN
203594369 204,663,558 204,869,272 201,560,777 2475832 Y of U, CN of U, CN of U, CN of U, CN) etc. it is public
A kind of wet type coal side roofbolt recovering device is opened, notable technical characteristic is hollow drill bit welding alloy piece, hollow drilling rod appearance
Face is straight wall, which does not have evagination or embedded helix, and coal is gone out by hollow drilling rod surfaces externally and internally using water as power
End；Hollow drilling rod internal diameter is 1.2~1.4 times of bolt diameter or hollow drilling rod internal diameter is 20mm or helps resin using coal
Anchor metal separates with Anchor Agent is detached from technique, by anchor pole protection inside drill rod body, by the coal around resin metallic anchor pole
Body and Anchor Agent are broken up or when Anchor Agent anchoring strength are less high, and drill bit and drilling rod internal diameter can be more than resin metallic anchor pole and bore
The diameter in hole, when Anchor Agent anchoring strength is higher, drill bit and drilling rod internal diameter are more than the solidification diameter of Anchor Agent；Hollow drilling rod is long
It spends for 500~1000mm or using multistage hollow drilling rod, resin metallic rock-bolt length multistage extension arm is helped according to coal；Drilling machine
There are sealing rings between connector.At present, in coal measure strata mine coal seam fully-mechanized mining working tunnel coal helps supporting, supporting pair
As being helped for tunnel coal, lithology is mainly coal and gangue, and the Protodyakonov coefficient of coal is less than 3 more, and how small the Protodyakonov coefficient of gangue is
In 6.Coal side supporting parameter is mainly the coal side a diameter of 28mm of resin metallic armature boring, and coal side resin metallic bolt diameter is 18
~22mm；Coal side resin metallic rock-bolt length is 1800~2000mm, and maximum protruded length is 100mm, i.e. coal side resin metallic
Anchor rod effective length is 1700~1900mm；The a diameter of 23mm of matching Anchor Agent, length be 35mm or 60mm, single anchor
Gu agent maximum valid bonding length is 800mm, coal side resin metallic anchor pole free end length is 1000~1200mm；Mating supporting
Equipment is anchor rod pallet board, nut, ladder beam and net.Resin metallic suspension roof support present situation is helped with reference to coal, in now disclosed wet type coal
It helps in roofbolt recovering device patent, shortcoming is：The cutting output of common alloy sheet hollow drill bit is small, and fltting speed is slower, works as coal
When helping as spoil, find that broken cash effect is poor in actual use, be short of power, need three people's operations；Partial monopoly discloses
Wet type coal side roofbolt recovering device, hollow drilling rod still be tubular structure auger stem, from discharge conny angle analysis, should
Spiral hollow core drilling rod operability is not strong；The eccentricity of hollow drilling rod internal diameter is unreasonable, and interference coal side anchor pole directly covers disconnected coal side
Anchor pole phenomenon happens occasionally；Coal side rock-bolt length is 1800~2000mm, and hollow drilling rod uses multistage drilling rod and the supporting of coal side not
It is consistent；Connector is fast-assembling equipment, and the sealing ring durability connected between drilling machine and connector is poor, and spoilage is higher.
Invention content
The purpose of this utility model is intended to overcome disadvantages mentioned above, provides a kind of safe operation, fltting speed fast, broken cash effect
The mine coal side anchor recovering drilling tool good, recovery utilization rate is high.
In order to achieve the above objectives, the utility model uses following solution：A kind of mine coal helps anchor recovering drilling tool, packet
Connector, hollow drilling rod and hollow drill bit are included, using being threadedly coupled, feature exists for connector, hollow drilling rod and hollow drill bit
In：Hollow drill bit welds diamond compact, and hollow drilling rod internal diameter is more than coal side resin metallic armature boring diameter and 2 times of bias
The sum of away from.
Above-mentioned mine coal side anchor recovering drilling tool, it is characterised in that：The hollow drilling rod quantity is each one of length,
Short hollow run of steel helps resin metallic anchor pole free end length for coal, and long hollow run of steel helps resin metallic anchor pole to have for coal
Imitate length.
Above-mentioned mine coal side anchor recovering drilling tool, it is characterised in that：The diamond compact be 3 teeth, the facewidth
15mm, the high 25mm of tooth.
It is using the method that the utility model recycling coal helps resin metallic anchor pole：
(1) when ore deposit pressure does not show, in the range of fully-mechanized mining working advance support 20m, disassembly ＆ recycling coal side resin is golden successively
Belong to the coals such as anchor rod pallet board, nut, ladder beam and the net of anchor pole side support unit；When ore deposit pressure shows, away from fully-mechanized mining working faces end head
In the range of 5m, the coals such as anchor rod pallet board, nut, ladder beam and net of disassembly ＆ recycling coal side resin metallic anchor pole help supporting structure successively
Part；
(2) the side resin metallic anchor pole that produces coal directly is covered using the utility model, it is using hollow drill bit directly to extract technique
Coal around coal side resin metallic anchor pole is broken up in drilling or gangue and the Anchor Agent of extravasation, water pass through core drill as power
Bar surfaces externally and internally punching row's conny, then directly extracts coal side resin metallic anchor pole and Anchor Agent with hollow drilling rod.
The principle of the utility model is：(1) when ore deposit pressure does not show, in the range of fully-mechanized mining working advance support 20m, successively
The coals side such as anchor rod pallet board, nut, ladder beam and net of disassembly ＆ recycling coal side resin metallic anchor pole support unit is new using this practicality
Type recycling drilling tool directly set, which produces coal, helps resin metallic anchor pole；When ore deposit pressure shows, in the range of away from fully-mechanized mining working faces end head 5m, successively
The coals side such as anchor rod pallet board, nut, ladder beam and net of disassembly ＆ recycling coal side resin metallic anchor pole support unit is new using this practicality
Type recycling drilling tool directly set, which produces coal, helps resin metallic anchor pole；(2) the directly set taking technique of coal side resin metallic anchor pole is using empty
Core drilling rod directly extracts coal side resin metallic anchor pole and Anchor Agent, what hollow bit bore was broken up be coal around coal side anchor pole or
Gangue and the Anchor Agent of extravasation, water rush row's conny as power by hollow drilling rod surfaces externally and internally；(3) this recycling drilling tool master
It to be made of connector, hollow drilling rod and the first-class three parts of core drill, wherein, since the maximum Protodyakonov coefficient of lane side bastard coal body is
The cutting output of the common alloy sheet hollow drill bit of 6,8 teeth is smaller, and it is poor to break cash effect, and hollow drill bit is changed to diamond compact, and 3
Tooth, facewidth 15mm, the high 25mm of tooth；(4) hollow drilling rod internal diameter fully considers eccentricity E, and calculation formula is E=(D-d)/2, formula
In, E is eccentricity, and D helps resin metallic armature boring diameter for coal, and d helps resin metallic bolt diameter for coal, based on eccentricity meter
Calculate hollow drilling rod internal diameter, calculation formula Dn>=D+2E, in formula, DnFor hollow drilling rod internal diameter, in coal helps supporting, coal side tree
Fat anchor metal bore diameter D is 28mm, and coal side resin metallic bolt diameter d is 18~22mm, then eccentricity E is 3~5mm,
Hollow drilling rod internal diameter DnFor 34~38mm；(5) the utility model operation number is two people, and one man operation, a people is responsible for safety, dynamic
Power source is common hand-held drill, in view of the space of fully-mechanized mining working advance support and end regions, hollow drilling rod quantity is length
Each one, short hollow run of steel helps resin metallic anchor pole free end length for coal, and long hollow run of steel helps resin gold for coal
Belong to anchor rod effective length, in coal helps supporting, coal side resin metallic rock-bolt length is 1800~2000mm, and coal helps resin metallic anchor
Bar effective length is 1700~1900mm, and coal side resin metallic anchor pole free end length is 1000~1200mm, then two hollows
The length of drilling rod, one is 1000~1200mm, and another is 1700~1900mm；(6) in view of the convenience of hand-held, sky
The length and weight of core drilling rod, hollow drill pipe thickness are 4mm, and connector, hollow drilling rod and hollow drill bit are used and be threadedly coupled,
For example, when hollow drilling rod internal diameter be 37mm when, screw thread be M42 × 2mm, M type screw threads, nominal diameter 42mm, screw pitch 2mm, hollow
Drilling rod outer diameter is 45mm.
Compared with prior art, the utility model has substantive distinguishing features following prominent and significant effect：
1st, hollow drill bit described in the utility model welds 3 tooth diamond compacts, can solve common alloy sheet core drill
Head cutting output is small, slow, the broken cash effect of fltting speed is poor, is short of power and the problems such as more people's operations；Internal diameter, the wall of hollow drilling rod
Thick, quantity and length can solve unreasonable hollow drilling rod internal diameter design, directly interference coal side anchor pole, the disconnected coal side resin metallic of set
The problems such as anchor pole and multistage hollow drilling rod, so the utility model has, safe operation, fltting speed are fast, it is good to break cash effect,
The advantages that recovery utilization rate is high.
2nd, the utility model is widely used in coal measure strata mine laneway fully-mechanized mining working tunnel and Guo Kong lanes coal side resin gold
Belong to anchor recovering etc..
Description of the drawings
Fig. 1, the utility model structure diagram.
Fig. 2, the utility model hollow drilling rod internal diameter structure diagram.
In figure：1st, connector 2, hollow drilling rod 3, hollow drill bit 4, diamond compact 5, coal side resin metallic anchor pole
6th, Anchor Agent
Specific embodiment
The utility model is further described below in conjunction with attached drawing.
Embodiment 1：
15109 fully-mechanized mining working of certain ore deposit 15# coal seams arranges two crossheadings, i.e. haulage gate and air return way, haulage gate
Length is 767m, and non-side side of mining is left hand thread steel (25MnSi), and 20 × 1800mm of Ф help armature boring depth 1700mm,
Exposed 100mm, array pitch 1500mm, a row 5；Air return way length is 1086m, and non-side side of mining is left hand thread steel
(25MnSi), 20 × 1800mm of Ф help armature boring depth 1700mm, exposed 100mm, array pitch 1500mm, a row 4.
Above-mentioned working face haulage gate and air return way coal side resin metallic anchor pole are recycled using the utility model：
(1) when ore deposit pressure does not show, in the range of fully-mechanized mining working advance support 20m, disassembly ＆ recycling coal side resin is golden successively
Belong to the coals such as anchor rod pallet board, nut, ladder beam and the net of anchor pole 5 side support unit；When ore deposit pressure shows, away from fully-mechanized mining working faces end head
In the range of 5m, the coals such as anchor rod pallet board, nut, ladder beam and net of disassembly ＆ recycling coal side resin metallic anchor pole 5 help supporting structure successively
Part；
(2) it is produced coal using the utility model recycling drilling tool directly set and helps resin metallic anchor pole, the utility model recycling drilling tool
Including connector 1, hollow drilling rod 2 and hollow drill bit 3, hollow drill bit 3 welds 4,3 tooth of diamond compact, facewidth 15mm, tooth
High 25mm, 2 internal diameter of hollow drilling rod are more than the sum of coal side resin metallic armature boring diameter and 2 times of eccentricities, for 37mm, core drill
2 quantity of bar is each one of length, and short hollow run of steel helps resin metallic anchor pole free end length for coal, for 1100mm, vast sky
Core run of steel for coal help resin metallic anchor rod effective length, be 1700mm, 2 wall thickness of hollow drilling rod be 4mm, connector 1, hollow
Drilling rod 2 and hollow drill bit 3 are using threaded connection, M42 × 2mm, M type screw threads, nominal diameter 42mm, screw pitch 2mm；Directly cover
It is to produce coal to help resin metallic anchor pole 5 and Anchor Agent 6 using the directly set of hollow drilling rod 2 to go out technique, and coal side is broken up in the drilling of hollow drill bit 3
The Anchor Agent 6 of coal or gangue and extravasation around resin metallic anchor pole 5, water pass through appearance in hollow drilling rod 3 as power
Face punching row's conny.
15109 working face haulage gates and air return way coal side resin metallic anchor recovering work well.
Embodiment 2：
15109 fully-mechanized mining working of certain ore deposit 15# coal seams needed eastern wing air return lane, eastern wing adhesive tape lane and eastern three, lane of wing tracks sky
Lane, the coal side resin metallic anchor pole arrangement in the three Tiao Kong lanes are：Two help anchor pole material as left hand thread steel (25MnSi),
20 × 1800mm of Ф help armature boring depth 1700mm, exposed 100mm, array pitch 1200mm, a row 4.Surpass in fully-mechanized mining working
In the range of preceding 20m, the coals side such as anchor rod pallet board, nut, ladder beam and net of disassembly ＆ recycling coal side resin metallic anchor pole supporting successively
Component is produced coal using the utility model recycling drilling tool directly set and helps resin metallic anchor pole, and totally six coals help resin gold in three Tiao Kong lanes
Belong to anchor recovering to work well.Other same embodiments 1.
Claims (3)
1. a kind of mine coal helps anchor recovering drilling tool, including connector, hollow drilling rod and hollow drill bit, connector, hollow drilling rod
With hollow drill bit using threaded connection, it is characterised in that：Hollow drill bit welds diamond compact, and hollow drilling rod internal diameter is more than
Coal helps the sum of resin metallic armature boring diameter and 2 times of eccentricities.
2. mine coal according to claim 1 helps anchor recovering drilling tool, it is characterised in that：The hollow drilling rod quantity is
Each one of length, short hollow run of steel help resin metallic anchor pole free end length for coal, and long hollow run of steel is coal side tree
Fat anchor metal effective length.
3. mine coal according to claim 1 helps anchor recovering drilling tool, it is characterised in that：The diamond compact is
3 teeth, facewidth 15mm, the high 25mm of tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721059491.2U CN207583407U (en) | 2017-08-23 | 2017-08-23 | A kind of mine coal helps anchor recovering drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721059491.2U CN207583407U (en) | 2017-08-23 | 2017-08-23 | A kind of mine coal helps anchor recovering drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207583407U true CN207583407U (en) | 2018-07-06 |
Family
ID=62717808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721059491.2U Expired - Fee Related CN207583407U (en) | 2017-08-23 | 2017-08-23 | A kind of mine coal helps anchor recovering drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207583407U (en) |
-
2017
- 2017-08-23 CN CN201721059491.2U patent/CN207583407U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180706 Termination date: 20190823 |